Jin

Jio's childhood friend that protected Jio when he was bullied by other kids. The same day that Jin told Jio they were friends, Jin witnessed his parents being killed by Jio in Satan form. He became extremely hateful towards Jio and wanted to kill him. He later became an O.P.T. for hire, and met Jio on a mission. During their fight, Satan awakened and told him the truth about his parents' death. When Jin realized what really happened, he forgave Jio and saved his life from a fire he started. His O-Part is Ashura (B rank), and its effect is Flame. Jin has two special attacks, fueled by his hatred of Jio: Black Flame Pillar and Black Flame Dragon. Later, Jin returned to take place in the Olympia tournament, and during the Olympia tournament, it was revealed Jin no longer hated Jio and was instead focusing on saving Jio from Satan. Also, the hatred that fueled the black flames of Ashura have been replaced by the more powerful blue flames.